Methods and devices for preparing and implanting tissue scaffolds
First Claim
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1. A surgical method, comprising:
- advancing a transparent film through a passageway extending through tissue and into a body cavity, the film having a folded configuration when disposed within the passageway and opening to a planar configuration upon passage out of the passageway and into the body cavity;
positioning the film over a defect in a tissue surface in the body cavity;
comparing a shape of the film to a shape of the defect;
removing the film from the patient;
cutting the film to have a shape that substantially corresponds to the shape of the defect; and
using the cut film shape as a template to cut a tissue repair scaffold such that the tissue repair scaffold has a shape that substantially corresponds to the shape of the defect.
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Abstract
Methods and devices are provided for preparing and implanting tissue scaffolds. Various embodiments of scribing tools are provided that are configured to mark one or more predetermined shapes around a defect site in tissue. The shape or shapes marked in tissue can be used to cut a tissue scaffold having a shape that matches the shape or shapes marked in tissue. In one embodiment, the scribing tool used to mark a shape in tissue can also be used to cut the tissue scaffold.
123 Citations
18 Claims
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1. A surgical method, comprising:
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advancing a transparent film through a passageway extending through tissue and into a body cavity, the film having a folded configuration when disposed within the passageway and opening to a planar configuration upon passage out of the passageway and into the body cavity; positioning the film over a defect in a tissue surface in the body cavity; comparing a shape of the film to a shape of the defect; removing the film from the patient; cutting the film to have a shape that substantially corresponds to the shape of the defect; and using the cut film shape as a template to cut a tissue repair scaffold such that the tissue repair scaffold has a shape that substantially corresponds to the shape of the defect. - View Dependent Claims (2, 3, 4, 5)
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6. A surgical method, comprising:
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advancing a transparent film through a passageway extending through tissue and into a body cavity, the film having a folded configuration when disposed within the passageway and opening to a planar configuration upon passage out of the passageway and into the body cavity; positioning the film over a defect in a tissue surface in the body cavity; comparing a shape of the film to a shape of the defect; removing the film from the patient; cutting the film to have a shape that substantially corresponds to the shape of the defect; and using the cut film shape as a template to cut a tissue repair scaffold such that the tissue repair scaffold has a shape that substantially corresponds to the shape of the defect, wherein using the cut film shape comprises positioning the tissue repair scaffold adjacent the cut film and using a perimeter of the cut film shape as a guide to cut the tissue repair scaffold.
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7. A surgical method, comprising:
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inserting a flexible transparent film into a body cavity of a patient; positioning the film over a defect in a tissue surface in the body cavity; comparing an original shape of the film to a shape of the defect; trimming the transparent film to have a new shape that substantially corresponds to the shape of the defect; and after trimming the transparent film, placing a tissue repair scaffold adjacent to the trimmed film and cutting the tissue repair scaffold to substantially corresponds to the new shape of the trimmed transparent film. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification